Target Disk Mode can be used to create a backup file before formatting, reformatting or upgrading, and downgrading the Mac system.Copying data from Target Mac to the host computer is faster than the Migration Assistant tool which is used to transfer data from an old Mac to a new Mac device.You can also use TDM to recover data from Mac hard drives.Target Disk Mode in Mac helps to recover data from unbootable and corrupt Mac devices.Booting a Mac system in a Target Disk Mode allows the transfer of data at very high speed from Target Mac i.e., iMac or MacBook or Mac Mini to the Host device i.e., any other working Mac system.Let us first understand in what cases Target disk mode Mac can come in handy. What does Target Disk Mode do?īefore we move on to learn how to boot Mac in target disk mode to transfer data. As a result of which, target Mac can be formatted, logically partitioned and data can also be transferred with ease. Target disk mode makes target Mac (Mac computer with source data) similar to an external hard drive. This Target mode allows you to transfer data from Mac to Mac with the help of FireWire or Thunderbolt cable at a much faster speed compared to the other data transferring techniques. To use external devices with your other Mac, connect them directly to the other Mac, not to your iMac.Mac Target disk mode, also known as TDM is a unique boot feature on a Mac computer. The other Mac can't use the iMac computer's built-in camera or ports. For example, if you begin playing music on your iMac and then enter target display mode, the music doesn't pause on your iMac. Or disconnect the cable, or restart either Mac.Īpps that were open on your iMac when entering target display mode remain open in target display mode. To exit target display mode, press Command-F2 again.You should now see the desktop of the other Mac. Press Command-F2 on the keyboard of the iMac.You can use more than one iMac as a display, if each iMac is using a Thunderbolt cable to connect directly to a Thunderbolt port on the other Mac (not the other iMac). Connect the two computers using the appropriate Mini DisplayPort or Thunderbolt cable.
Make sure that the other Mac is started up and logged in to a macOS user account.Make sure that your iMac is started up and meets the system requirements above.
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